--- In digitalradio@yahoogroups.com, Leigh L Klotz, Jr. [EMAIL PROTECTED]
wrote:
Vojtect OK1AK's PocketDigi may be the answer here, in the x86 version.
Especially if the cntrol gets done over TCP.
Leigh/WA5ZNU
There is a file interface built in the desktop build of PocketDigi
similar to the
, February 01, 2007 2:11 AM
Subject: [digitalradio] Re: FNpsk
Hi Rick,
I think FNpsk uses QPSK125 and PSK31...but otherwise you are correct
as there is no speed difference that I am aware of between BPSK125
and QPSK125QPSK125 is alot more frequency sensitive then BPSK125
and I
Patrick
- Original Message -
From: KV9U
To: digitalradio@yahoogroups.com
Sent: Thursday, February 01, 2007 4:34 AM
Subject: Re: [digitalradio] Re: FNpsk
I used to struggle with converting from cps to wpm until one day my
brain actually kicked in and I made
The bps with packet is the same as the baud rate. With other modes that
have different levels, the signalling rate (the baud rate) can have more
than one bit sent per baud.
The fastest baud rate that Pactor uses is 200 baud, but the bps rate is
many times faster with P2 and P3.
The speed of
Something I never have quite understood is that in the late 90's in
Indonesia, hams have used
1200 baud satellite PSK modems on 40 meters with seemingly good results.
It has been a bit hard for me to follow that. Does anyone have a
sensible explanation
for this to be useful. I do not own such
According to the information in the help files from Multipsk:
1200 baud Packet = 1320 wpm
BPSK125 = 148 wpm capital and 204 wpm small letter average speed at
about -8 db S/N
Of course this assumes that both have good signal strengths and there
are no hits. If the PSK125 mode takes a hit it
Hi Rick,
I think FNpsk uses QPSK125 and PSK31...but otherwise you are correct
as there is no speed difference that I am aware of between BPSK125
and QPSK125QPSK125 is alot more frequency sensitive then BPSK125
and I think that about -5 db S/N is probably more realistic than -8
db S/N.
73
How can 1200 baud = 1320 WPM? In the case of AX.25 baud=bps since a
mark-space=one bit.
An 8 bit ASCII character with start and stop bits would be 10 bps so 1200
bps=120 CPS.
If a word is 6 characters, then 120 CPS = 20 WPM which we know is too slow.
As far as a mode using a VariCode, the
I used to struggle with converting from cps to wpm until one day my
brain actually kicked in and I made the association this way:
cps x 60 seconds / 6 characters per word = wpm
Therefore, if 120 cps x 60 = 7200 / 6 = 1200 wpm
Thus, to convert from cps to wpm, just add a zero.
To convert
Walt DuBose writes:
How can 1200 baud = 1320 WPM? In the case of AX.25 baud=bps since a
mark-space=one bit.
An 8 bit ASCII character with start and stop bits would be 10 bps so 1200
bps=120 CPS.
If a word is 6 characters, then 120 CPS = 20 WPM which we know is too slow.
(120
Ok...got it. I think I see my mistake.
Thsnk 73,
Walt/K5YFW
KV9U wrote:
I used to struggle with converting from cps to wpm until one day my
brain actually kicked in and I made the association this way:
cps x 60 seconds / 6 characters per word = wpm
Therefore, if 120 cps x 60 = 7200
So is 1200 baud = 1200 bps and 1200 bps (1200 / 8) = 120 cps?
If so then 120 cps (120 / 6) = 20 wps X 60 sec. or 1200 WPM.
That's over 1.5 pages per minute. (Page = 72-76 characters X 60 - 66 lines per
page.)
Walt/K5YFW
Chris Jewell wrote:
Walt DuBose writes:
How can 1200 baud = 1320
How many bps is 1200 baud FSK?
How many bps = cps?
Walt/K5YFW
KV9U wrote:
I used to struggle with converting from cps to wpm until one day my
brain actually kicked in and I made the association this way:
cps x 60 seconds / 6 characters per word = wpm
Therefore, if 120 cps x 60 = 7200
Rick,
Anyone using a PC with 256mb ram can use the live CD for pskmail. I
have a server (VE7SUN) running 24/7 on 3595.25Khz using psk125 from
the live CD and also a client at home also running the CD. All the
servers are listed on the pskmail site. My station (VE7CUS) beacons
every 15
FNpsk was developed by a member of the SGARES (Southern Grafton ARES)
group in New Hampshiire. I was an AEC with that group before moving
out of state. As such, I was very involved in the testing of FNpsk and
I recall that it worked quite well as long as propagation cooperated.
That was always
If we did not have to send all the formatting of a message type, and
only sent a special identifier of the format, the text data would be a
fraction of the total we would normally have to send compared to a .doc
file or even a much more efficient Open Office native .odt file.
73, Rick,
and using the same sound
card at the same time on the same mode, then I would thing that having too
separate would be Ok but of course integrating them is better.
73,
Walt/K5YFW
Original Message
Subject: Re: [digitalradio] Re: FNpsk
Date: Tue, 30 Jan 2007 10:27:17 +0100
From: Rein
At 03:27 AM 1/30/2007, Rein Couperus wrote:
Everybody with an HF trx and a laptop that has a CD drive and a
soundcard can set up a server and connect it to the internet,
provided the trx has reasonable fequency stability
.
We are planning to include HF forwarding capability in both client and
Hey, I proposed this last month for contests and PSK ragchews using
QRZ.com as the database...
Leigh/WA5ZNU
On Tue, 30 Jan 2007 7:32 am, kd4e wrote:
If we did not have to send all the formatting of a message type, and
only sent a special identifier of the format, the text data would be a
Vojtect OK1AK's PocketDigi may be the answer here, in the x86 version.
Especially if the cntrol gets done over TCP.
Leigh/WA5ZNU
On Tue, 30 Jan 2007 10:17 am, Chuck Mayfield wrote:
At 03:27 AM 1/30/2007, Rein Couperus wrote:
Everybody with an HF trx and a laptop that has a CD drive and a
At 01:25 PM 1/30/2007, Rein Couperus wrote:
M$ gives you windows, Linux gives you as many desktops as you like :))
Rein
Rein,
I am certainly not a fan of M$ or Windows, but M$ Windows is used by
a VERY large percentage of ham radio operators who use computers.
FNPsk runs directly under windows.
If you use a dedicated computer for your gateway, which is somewhat
likely if you use a dedicated radio, then you can just stick the CD in
and go...
73,
Leigh/WA5ZNU
On Tue, 30 Jan 2007 12:04 pm, Chuck Mayfield wrote:
At 01:25 PM 1/30/2007, Rein Couperus wrote:
M$ gives you windows, Linux
If at all possible (or convenient) I would accept the operators to use
Windows. It is THEIR problem with virus and other vulnerabilities.
For the server, life would be much simpler using Linux. No antivirus
or Service Packs needed...
Jose, CO2JA
---
Leigh L Klotz, Jr. wrote:
If you use a
] Re: FNpsk
If at all possible (or convenient) I would accept the operators to use
Windows. It is THEIR problem with virus and other vulnerabilities.
For the server, life would be much simpler using Linux. No antivirus
or Service Packs needed...
Jose, CO2JA
.
moderator [EMAIL PROTECTED]
moderator http://groups.yahoo.com/group/DXandTalk
- Original Message -
From: James Wilson [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Tuesday, January 30, 2007 5:31 PM
Subject: Re: [digitalradio] Re: FNpsk
Whats wrong with service packs and AV
Here is an interesting question...
What is the user throughput in WPM or CPS (what you see on your monitor) in
1200
baud AX.25 and the 190-200 WPM user throughput of PSK125?
I have send many, many pure SMTP messages using sendmail over AX.25 KISS mode
with a NOS stack.
I have also worked
James Wilson wrote:
Whats wrong with service packs and AV and security hot fixes? Us
networking guys have to stay in business.
Seriously though I would recommend using Linux over MS. This recent
daylight savings time issue shows how Microsoft can be heavy handed.
Basically you have
Frank,
Just downloaded the file and set it up. Looks interesting. Will test
with anyone who wants to test. Best would be 20 meters somewhere
around 14.069.500 plus 1000Hz (audio).
Jerry - K0HZI
--- In digitalradio@yahoogroups.com, Frank Krasnicki
[EMAIL PROTECTED] wrote:
Anybody using
--- In digitalradio@yahoogroups.com, Walt DuBose [EMAIL PROTECTED] wrote:
Can someone tell me about FNPSK?
Thanks 73,
Walt/K5YFW
Walt,
I used it and tested it a year or so ago, it works as advertised. It
essentially formats NTS-Type messages and allows you to use PSK31 or
PSk63.
Back in June 2005, Andy and I did some tests with FNpsk. I can't exactly
remember how the ARQ works, other than sending a sizeable block and then
requesting a retry if it doesn't get the right checksum?
There did not seem to be any interest from other group members at the
time. From some
Andrew O'Brien wrote:
--- In digitalradio@ yahoogroups. com
mailto:digitalradio%40yahoogroups.com, Walt DuBose [EMAIL PROTECTED]
wrote:
Can someone tell me about FNPSK?
Thanks 73,
Walt/K5YFW
Walt,
I used it and tested it a year or so ago, it works as advertised.
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